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Because this is our first week, there are no real programming challenges this week. What we have instead are some setup tasks you'll need to do before class.

PC1. Download and install R — You can do that from this webpage where you will have to choose based on your operating system.

PC2. Download and install RStudio — Download and run the "installer" from the "Installers" sections of the RStudio download page. You'll want to choose the one that is appropriate for your operating systems (e.g., Windows, Mac OSX, or GNU/Linux).

PC3. Get setup with git and Github — You should do two things before class.

Although there are major ethical concerns with the paper, and we'll be coming back and talking about it a number of times this quarter, let's focus on the key issues of research design and the substantive takeaway.

For this paper, answer each of these questions and be ready to cite parts of the paper that support each claim:

Q6. Identify (a) the cases, (b) the variables and their types, and (c) the main research question of this piece.

Q7. (a) What do the treatment and control groups consist of in this study? (b) What type of sampling does the study use? (c) Describe the experimental manipulation.

Q8. Identify (a) the population of interest and (b) the sample used in the study. (c) Do you think that this study can be generalized from the sample to the population?

Q9. There is one figure in the paper (Figure 1). Walk us through the figure and explain what it represents and reflects.

Q10. (a) Summarize the results of the study. (b) What is the size of the effect? Is this meaningful? (c) Describe what you think the important takeaway from the paper is.